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Reflection measurements at the interface between disk laser glass and edge cladding glass.
Applied Optics
|March 9, 2010
Summary
To reduce unwanted light reflections in glass laser disks, researchers studied edge cladding. Minimizing bubbles and maximizing cladding glass absorption are key to suppressing parasitic oscillations and improving laser performance.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Glass laser disks require edge coatings to prevent light reflection and parasitic oscillations.
- Solder glass is commonly used for this purpose.
Purpose of the Study:
- To experimentally investigate factors influencing edge reflection in glass laser disks.
- To identify methods for reducing edge reflectivity and suppressing parasitic oscillations.
Main Methods:
- Experimental study of edge reflection.
- Analysis of refractive index matching between disk and cladding glass.
- Evaluation of cladding glass absorption.
- Assessment of scattering by bubbles in cladding glass.
Main Results:
- Edge reflection is dependent on refractive index matching, cladding absorption, and bubble scattering.
- Decreasing bubbles at the disk-cladding interface reduces reflection.
- Increasing the absorption coefficient of cladding glass is beneficial for reducing reflection.
Conclusions:
- Minimizing bubbles at the interface is crucial for reducing edge reflection.
- High absorption in cladding glass effectively suppresses unwanted reflections and parasitic oscillations in glass laser disks.
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